Re: Remington 597 aperature sight setup?
Sorry I didn't see this sooner. The Techsight for the Marlin works with a little filing to the rear sight or the dovetail. The Marlin is 3/8" and the 597 is 11mm. Other than that, I've seen a couple of other installs over at rimfirecentral.com using a couple of different William's Sight adaptations.
Hope this helps...